福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

 EMERSON 1 HP JET PUMP MOTOR 3450 RPM 115/230V C55CXDEL-2661

 GE GENERAL ELECTRIC 2 HP AF-300B AC DRIVE 460 VAC 3Ø 6VAF343002B-A2 W/ KEYPAD

  AMERICAN INTERNATIONAL ELECTRIC AIE 750W 16" IMPULSE SEALER 115V AIE-400P

 (DM SAMERICAN CYLINDERS AIR CYLINDER 3250RF-2.00 ()

  ECONOMASTER 1/4 HP CONDENSER FAN MOTOR 1075 RPM 48Y FR 208-230V EM3728F

DM S  ECONOMASTER 1/4 HP CONDENSER FAN MOTOR 1075 RPM 48Y FR 208-230V EM3728F

MAGNETEK CENTURY 1/2 HP CIRCULATOR PUMP MOTOR 120/240V E56Y FRAME C240

ANDANTEX ANGLGEAR RIGHT ANGLE BEVEL GEAR DRIVE R3500-2

AUTOMATION CONTROLS IDRIVE BRUSHLESS DC MOTOR 100W24 110165

BARD HVAC ENHANCED ALARM BOARD AB3000-B

 INDUSTRIAL DEVICES SERVO MOTOR W/ CYLINDER 8" STROKE NB23-205B-8-MS2-MT1-BS

ITT GRINNELL THERMOLIER HYDRONIC IT HEATER W/ 5KSP11DG913S BLOWER MOTOR

ITE SIZE 3 MOTOR STARTER 600 VAC 50 HP 3 PHASE 100 AMP 120 VAC COIL A203E

 FUSION UV SYSTEMS RF-1 RF DETECTOR 079961

WALTER KIDDE AEROSPACE 72-111111-302 SMOKE DETECTOR

 HONEYWELL INPUT / OUTPUT BOARD 51305072-200 REV F

 EST COMMICATOR MODEM GSBSC

  JOHN C ERNST 316 STAINLESS STEEL SIGHT FLOW INDICATOR 230 PSI ¼'' NPT 716

 HONEYWELL DIGITAL INPUT MODULE 24 VDC 16 CHANNEL SDI-1624 CCV1.0

 HONEYWELL DIGITAL INPUT MODULE 24 VDC 16 CHANNEL SDI-1624 CCV1.1

MIAUR MSR6R/T IVERSAL SAFETY RELAY GUARD MASTER 44510-0330

SCHRADER BELLOWS 315060110 MULTI PURPOSE VALVE

 JABRA PRO 9460 HANDS  COMMICATION HEADSET WITH BASE 9460-69-707-105

  WATSON MCDANIEL 1/2" SS STEAM TRAP W/ STRAINER  BLOWDOWN TD600LSB-12-N

OTHERM TEMPERATURE CONTROLLER 100-240 VAC 2408F

 STROMAG 5016-07 / CROWN 126797-002 SDB4 ELECTRIC BRAKE

 ASHCROFT LIQUID FILLED PRESSURE GAUGE 0-100 PSI 45-1259SL-04L-XNNSG-100#

 BOSTON GEAR 1/2" 4-WAY 3 POSITION DIRECTIONAL CONTROL VALVE EK81FA00KC0KL3

BONNEY FORGE 2" GATE VALVE CLASS 800 HL 11-LE

ALLEN BRADLEY SIZE 3 MOTOR STARTER 509-DOD 3 PHASE COIL 120VAC WITH LUGS

SQUARE D QOB235PL 35AMP CIRCUIT BREAKER 2 POLE 120/240V REMOTE OPERATED

 DWYER A3000 PHOTOHELIC PRESSURE GUAGE CIRCUIT HN INCHES OF WATER 0-.25

  CABLETRON FORMIN-22 ETHERNET FOIR-10BASE-FL / 940063200

 DWYER A3000 PHOTOHELIC PRESSURE GUAGE CIRCUIT HN INCHES OF WATER 0-10

  ALL 3/4" x 50' BLUE NITROGEN HOSE W/ DIXON 4P DUAL LOCK COUPLER L15

 PENNWALT WALLACE  TIERMAN PORTABLE PNEUMATIC CALIBRATOR FU4882

 PH CONTROL HARNISCHFEGER POSITION BIAS MODULE 79U7D2 - FLAW

HONEYWELL SINGLE GAS VALVE STANDING PILOT COMBINATION V800 A 1476

 HONEYWELL SINGLE GAS VALVE STANDING PILOT COMBINATION V800 A 1476

PARKER JB3LLSI3C HYDRAULIC CYLINDER 3.25 BORE 2.000 STROKE 1050 PRESSURE

  CENTURY 1/3 HP ELECTRIC AC MOTOR 115/230 VAC 1 PHASE H56C FRAME 2850 RPM

 F.N. SHEPPARD F2GY15-17A-10AD CONVEYOR BELT 9.75" W X 18 FT LONG

HONEYWELL Q5024A1123 DCA LINKAGE FOR GLOBE VALVE W/BELIMO AFB24-MFT95 ACTUATOR

 DAYTON 1/4 HP DIRECT DRIVE BLOWER MOTOR 1625/3 RPM 115 VAC 1Ø 3LU73BG

  ALLEN BRADLEY ENCLOSED STARTER 109-A09FB3-A46P 5 HP TRANSFORMER 193-A4E1

  GE GENERAL ELECTRIC 1/2-1/6 HP AC MOTOR 115 VAC 1Ø 56 FRAME 1745/1140 RPM

BELL  GOSSETT NBF-12F/LW 103260 CIRCULATOR PUMP 115VAC 1" NPT 150 PSI

SIEMENS 6SN1123-1AA00-0AA0 SIMODRIVE 611 LT MODULE INT. 15A

OTHERM 3204 TEMPERATURE I/AL/VH/RXXX/R /XXX/G/ENG/ENG/XX/XXXXX

SIEMENS SIMATIC S7 INPUT MODULE 6ES7-326-1BK01-0AB0

  PBM 1/2" STAINLESS STEEL BLOCK BALL VALVE 3600 PSIG IMH-E6QQSCC-04

 BOSTON GEAR EK81FA00KC0KL2 4-WAY 1/2" DIRECTIONAL SPOOL VALVE W/ HANDLE

CUTLER HAMMER SIZE M-0 ENCLOSED MOTOR STARTER 575 VAC 5 HP 3Ø B100M0C

 HONEYWELL TK-PFDXX2 DC POWER SUPPLY 24 VDC 95 WATT 97106372 D01

 VIKING 3" GROOVE x GROOVE CHECK VALVE MODEL G-1 250 PSI PART NO. 08536

 APEX DYNAMICS 15:1 PLANETARY 5/8" x 1-1/8" SHAFT GEARHEAD ≤ 7 AB060A-B1-P2

  FAIRCHILD MODEL 1500A 3/8" POSITIVE BIAS RELAY 1-60 PSIG CATALOG NO 1543A

TECO SPEECON 7200MA 380V CLASS INVERTER 3Ø 480V 3.4 KVA 4.0A JNTMBGBB0002AZS

  FUJI ELECTRIC FVRK7S 1.9 KVA INVERTER DRIVE 5 AMP 200-230 VAC FVR008K7S-2

 NORTH AMERICAN 2-516 VALVE

 REMOTE CONTROL ACTUATOR 10 BAR 150 PSI 5,5 BAR 80 PSI 1,0 MPa RCI230-SR MAX

  BONNEY FORGE ¾" WATER FAUCET VALVE A105N

  DIAMOND 10' #60 PIN ROLLER CHAIN W/ SPRING CLIP 5388-CMH4058

 SIEMENS I-T-E 60 AMP NON-F SAFETY SWITCH 600 VAC 3Ø 50 HP TYPE 3R NFR352

DM S SIEMENS I-T-E 60 AMP NON-F SAFETY SWITCH 600 VAC 3Ø 50 HP TYPE 3R NFR352

 KOYO BEARING 5313ZZCD3 DOUBLE ROW ANGULAR CONTACT BEARING

HONEYWELL R4075C1005 FLAME AMPLIFIER 120 VAC W/ R7247C1001

 PENNWALT WALLACE  TIERNAN 8-1/2" 1500 HI PERFORMANCE GAUGE LINE 62A-4B-0031

INGERSOLL RAND IR 3/4" IMPACT G DRIVE WRENCH PNEUMATIC SEE VIDEO

SQUARE D 400A CIRCUIT BREAKER 600V 3 POLE KM 452

 ListingLIEBERT OCWEB-ADPT-ENCLDM S

 NORGREN 2" BORE 18-1/16" STROKE 150 PSI PNEUMATIC CYLINDER EJ0955B1

 MSA 25FT AIR SUPPLY HOSE W/ QUICK DISCONNECTS 471512

CLARK FILTER PROTURA NF20356 FILTER 4500289983

 CUTLER-HAMMER INDUSTRIAL CONTROL TRANSFORMER 500VA C0500E2CXX SERIES 2

 SUREBONDER ROD HEAD PLASTIC STRIP NAILS 2-3/8" 2500 QTY. 800-238G 2.5M

 MAGTROL AN1500 M LOAD MONITOR / SIGNAL CONDITIONER / DISPLAY 21-53V 5 WATT

 MKS IT251 24 VDC SIGNAL SWITCH IT25104P

 ALLEN BRADLEY 42EF-D2MPAK-F4 RIGHT SIGHT PHOTOSWITCH DIFFUSE SENSOR D 1.100

ANDERSON GREENWOOD THREE WAY VALVE 316 TRIM 6000 PSI MT3VIS-2

ROSEMOT C306RT22AA11 TWO WAY MANIF 316 SST C30610-1125-0000

DM SROSEMOT C306RT22AA11 TWO WAY MANIF 316 SST C30610-1125-0000

 SIEMENS SIMATIC S7 DIGITAL OUTPUT MODULE 6ES7 422-1HH00-0AA0

  SOLA HEVI-DUTY POWER SUPPLY 110/220V IN 2.6/1.4A 24V OUT 5A SDN 5-24-100

DM S  SOLA HEVI-DUTY POWER SUPPLY 110/220V IN 2.6/1.4A 24V OUT 5A SDN 5-24-100

 GW ELECTRIC 2 POSITION ROTARY MOTOR OPERATOR 24 VDC MO-07-05-003

 CARRLANE OPEN ARM AIR POWERED TOGGLE CLAMP 500LB CAPACITY CL-1000 PTC

HUB CITY MODEL 214 5/1 STYLE A GEAR REDUCER 0220-61201

 SIEMENS 505-6851-A REMOTE BASE CONTROLLER 505 6851A

DM S SIEMENS 505-6851-A REMOTE BASE CONTROLLER 505 6851A

TRIAD ACTUATED SANITARY 316SS BALL VALVE 1" 77C11002R3SAA APL-210N SWITCH 120V

REXNORD CPLG CB 50 .62 SD DISC SHAFT COUPLING 5/8" BORE 017231

  ALLEN BRADLEY SIZE 0 MOTOR STARTER 460-480V COIL 5 HP 600V 3Ø 509-AO*

DODGE TIGEAR GEAR REDUCER .75 HP 1750 RPM 15:1 RATIO 56C FRAME 2665436-01-ZT

  FAIRBANKS 1-1/4" BRONZE GATE VALVE TEFLON DISK 150-S 300 WOG U-01

 CENTURY C744 1/2 HP ELECTRIC AC MOTOR 1100 RPM H48Y FR 1Ø 115V 7-165190-01

 APC AP9631 NETWORK MONITORING CARD W/ENVIROMENTAL TEMP SENSING MDL AP9335T

 PULSAFEEDER MB9220 BOILER SYSTEM CONTROLLER PULSATROL SERIES 9000

 LEHIGH PNEUMATIC CYLINDER JHD20

 TIMKEN 27689 TAPERED ROLLER BEARING, X3S27689 SPACER, Y5S27620 SPACER SET

 PRECISION SELF-ALIGNING DOUBLE ROW BALL BEARING 2313 C/3

 ABB 1 HP MICRO AC VFD DRIVE 480 VAC 3 PHASE ACS-250-03U-02A2-4B063

  SIEMENS SIMATIC S7 18 SLOT PLC RACK 6ES7400-1TA01-0AA0

 HORTON MODULAR BREAK CLUTCH 928000

  DAYTON 1/2 HP SUBMERSIBLE SUMP PUMP 115V 1Ø 3450 RPM 3 AMP 31 GPM 3YU71B

  ELECTROMAX LOOP CONTROLLER W/OPERATING MANUAL 6014-3-14-1-0-00-00-000

 HOPE HIS-ML 15 SERIES TOUCHSCREEN HIS-ML15 15" TOUCHSCREEN

  FAFNIR TWO BOLT BASE PILLOW BLOCK BALL BEARING IT LSAO1 11/16

IBM FLEX BLADE 16GB RAM 2 X E5-2620 2 GHZ 15MB 6C PROC, 2 X 146GB HDD 8737-AC1

DM SIBM FLEX BLADE 16GB RAM 2 X E5-2620 2 GHZ 15MB 6C PROC, 2 X 146GB HDD 8737-AC1

 RAYCHEM JBL-100-R 100-277V AC

MURPHY PRESSURE TRANSMITTER 05705065 60 PSIG 9-28VDC PXT-60

 SIEMENS SIMATIC S7 DIGITAL OUTPUT SM 326 MODULE 24 VDC 326-2BF01-0AB0

OMEGA 100 PSI MAX FLOW METER 1/2" NPT FL-6705

 NEPTE MAGNETEK POOL SPA MOTOR 7-186895-20 1/3HP 115/230VAC 3450RPM W48Y

 PARKER 3/4" SOLENOID VALVE BRASS TWO WAY N.C. 120VAC 7321GBN53NMCN0C111P3

SMC SS5V2-W10SA2WD-07B-N7-D0 MANIF W/DM S SV2200-5FU 1) SV2100-5FU

  HONEYWELL 3/4" SOLENOID VALVE 110/120 VAC 0.160 AMP 2 PSI V4295S1005

 AMETEK / US GAUGE 4-1/2" SOLFRT GAUGE 0-300 PSI 1/2" NPT 1931LG / 150226

 SUPERIOR ¾" CONTROL VALVE 430C

3DM STGI TLTP-4L TOP LOK TOP CH CARBIDE INSERTS GRADE: TN-6 5

SYBRON TAYLOR MECHANICAL CHART DRIVE 83S401-72 7 DAY/24 HR, 9 DAY WIND CCW

RED LION CONTROLS ZFG0060C SEE VIDEO

RED LION CONTROLS LSCS0060 SEE VIDEO

ERING SYSTEM POWER SUPPLY OKI

 GE REVERSING MOTOR STARTER CR209B000CAA NEMA SIZE 0 18 AMPS COIL 120 VAC

50)  14303 TYVEK SHIRT LARGE 14303-050-3  OF 50

 COHERENT RADIATION MODEL 201 POWER METER

 VAREC #300 1-1/4" TOP GUIDEWIRE ANCHOR BM3647

GE SIZE 1 MAGNETIC REVERSING STARTER 115/120V COIL 600V 3Ø 10 HP CR309C002

TEDEA HTLEIGH 1250 SINGLE POINT LOAD CELL 7 WIRE

VIBCO SPWT-80 VIBRATOR 115 VAC 17 AMP SINGLE PHASE